A kind of ferret · also called Ferret

4 views: its portrait, and how it looks in the comparison photos.
About
The domestic ferret is a slender, low-slung pet carnivore measuring around 18 inches long from nose to tail.
As domesticated relatives of the wild European polecat, ferrets share the long, narrow body plan common across the weasel family. Male ferrets are noticeably larger than females, often weighing twice as much in adulthood. Their long, extremely flexible rib cages and spines allow them to slip easily through holes barely two inches wide.
From Wikipedia
The ferret is a small, domesticated species belonging to the family Mustelidae. The ferret is most likely a domesticated form of the wild European polecat, as evidenced by the ferret's ability to interbreed with European polecats and produce hybrid offspring.
Read more on Wikipedia →Text from Wikipedia’s “Ferret” article, CC BY-SA 4.0.
3 on the site
Weight
2.65 lb (1.2 kg)
Quick answer
A domestic ferret measures about 18 inches (0.45 m) long, stands roughly 4.7 inches (0.12 m) tall, and weighs around 2.6 pounds (1.2 kg). That puts its body length close to a standard skateboard, but at only about the weight of a loaf of bread.
Typical figures, the same ones every comparison on the site uses; real ones vary.
More like a domestic ferret
Compare it
Next to anything: a person, a car, another ferret.